Revenue - Summary of Revenue from Contracts with Customers on a Disaggregated Basis (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | $ 3,117 | | $ 5,516 |
Revenue from both contract with customer and not from contract with customer | $ 2,337 | | $ 4,779 | |
Other operating revenues | (48) | (162) | (79) | (248) |
Total revenues and non-operating income | 2,289 | 2,955 | 4,700 | 5,268 |
Crude oil revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | 1,783 | | 3,022 |
Revenue from both contract with customer and not from contract with customer | 1,521 | | 3,044 | |
Natural gas liquids revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 112 | 173 | 253 | 354 |
Natural gas revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 220 | 346 | 454 | 626 |
Sales of purchased oil and gas | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 484 | 815 | 1,028 | 1,514 |
Exploration and Production | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues and non-operating income | 2,287 | 2,955 | 4,696 | 5,268 |
Exploration and Production | Crude oil revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | 1,783 | | 3,022 |
Revenue from both contract with customer and not from contract with customer | 1,521 | | 3,044 | |
Exploration and Production | Crude oil revenue | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 710 | 895 | 1,379 | 1,731 |
Exploration and Production | Crude oil revenue | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | 681 | | 907 |
Revenue from both contract with customer and not from contract with customer | 787 | | 1,612 | |
Revenue not from contract with customer | 88 | 0 | 196 | 0 |
Exploration and Production | Crude oil revenue | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 24 | 37 | 53 | 68 |
Exploration and Production | Crude oil revenue | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 170 | 0 | 316 |
Exploration and Production | Natural gas liquids revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 112 | 173 | 253 | 354 |
Exploration and Production | Natural gas liquids revenue | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 112 | 173 | 253 | 354 |
Exploration and Production | Natural gas liquids revenue | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Exploration and Production | Natural gas liquids revenue | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Exploration and Production | Natural gas liquids revenue | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Exploration and Production | Natural gas revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 220 | 346 | 454 | 626 |
Exploration and Production | Natural gas revenue | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 38 | 126 | 92 | 211 |
Exploration and Production | Natural gas revenue | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Exploration and Production | Natural gas revenue | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 182 | 215 | 362 | 405 |
Exploration and Production | Natural gas revenue | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 5 | 0 | 10 |
Exploration and Production | Sales of purchased oil and gas | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 484 | 815 | 1,028 | 1,514 |
Exploration and Production | Sales of purchased oil and gas | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 469 | 761 | 996 | 1,421 |
Exploration and Production | Sales of purchased oil and gas | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 15 | 18 | 32 | 22 |
Exploration and Production | Sales of purchased oil and gas | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Exploration and Production | Sales of purchased oil and gas | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 36 | 0 | 71 |
Midstream | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues and non-operating income | 2 | 0 | 4 | 0 |
Midstream | Crude oil revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Midstream | Natural gas liquids revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Midstream | Natural gas revenue | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Midstream | Sales of purchased oil and gas | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Operating Segments | Exploration and Production | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | 3,117 | | 5,516 |
Revenue from both contract with customer and not from contract with customer | 2,337 | | 4,779 | |
Other operating revenues | (50) | (162) | (83) | (248) |
Total revenues and non-operating income | 2,287 | 2,955 | 4,696 | 5,268 |
Operating Segments | Exploration and Production | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 1,329 | 1,955 | 2,720 | 3,717 |
Other operating revenues | (30) | (95) | (56) | (153) |
Total revenues and non-operating income | 1,299 | 1,860 | 2,664 | 3,564 |
Operating Segments | Exploration and Production | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | | 699 | | 929 |
Revenue from both contract with customer and not from contract with customer | 802 | | 1,644 | |
Other operating revenues | (20) | (52) | (27) | (67) |
Total revenues and non-operating income | 782 | 647 | 1,617 | 862 |
Operating Segments | Exploration and Production | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 206 | 252 | 415 | 473 |
Other operating revenues | 0 | 0 | 0 | 0 |
Total revenues and non-operating income | 206 | 252 | 415 | 473 |
Operating Segments | Exploration and Production | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 211 | 0 | 397 |
Other operating revenues | 0 | (15) | 0 | (28) |
Total revenues and non-operating income | 0 | 196 | 0 | 369 |
Operating Segments | Midstream | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 322 | 314 | 625 | 626 |
Other operating revenues | 2 | 0 | 4 | 0 |
Total revenues and non-operating income | 324 | 314 | 629 | 626 |
Eliminations | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | (322) | (314) | (625) | (626) |
Other operating revenues | 0 | 0 | 0 | 0 |
Total revenues and non-operating income | (322) | (314) | (625) | (626) |
Eliminations | Exploration and Production | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Total revenues and non-operating income | 0 | 0 | 0 | 0 |
Eliminations | Exploration and Production | United States | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Eliminations | Exploration and Production | Guyana | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Eliminations | Exploration and Production | Malaysia and JDA | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Eliminations | Exploration and Production | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0 |
Eliminations | Midstream | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Revenue from contract with customer, excluding assessed tax | 322 | 314 | 625 | 626 |
Total revenues and non-operating income | $ 322 | $ 314 | $ 625 | $ 626 |